Full Freeview on the Divis (Northern Ireland) transmitter
Brian Butterworth first published this on - UK Free TV
Google Streetview | Google map | Bing map | Google Earth | 54.607,-6.009 or 54°36'24"N 6°0'34"W | BT17 0NG |
The symbol shows the location of the Divis (Northern Ireland) transmitter which serves 440,000 homes. The bright green areas shown where the signal from this transmitter is strong, dark green areas are poorer signals. Those parts shown in yellow may have interference on the same frequency from other masts.
This transmitter has no current reported problems
The BBC and Digital UK report there are no faults or engineering work on the Divis (Northern Ireland) transmitter._______
Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
DTG-12 QSPK 8K 3/4 8.0Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
Which Freeview channels does the Divis transmitter broadcast?
If you have any kind of Freeview fault, follow this Freeview reset procedure first.Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
DTG-12 QSPK 8K 3/4 8.0Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
Which BBC and ITV regional news can I watch from the Divis transmitter?
BBC Newsline 0.6m homes 2.5%
from Belfast BT2 8HQ, 1,044km northeast (51°)
to BBC Northern Ireland region - 46 masts.
Are there any self-help relays?
Chapel Fields | Transposer | Central Belfast | 61 homes |
How will the Divis (Northern Ireland) transmission frequencies change over time?
1950s-80s | 1984-97 | 1997-98 | 1998-2012 | 2012-13 | 4 Mar 2020 | ||||
VHF | A K T | A K T | A K T | K T | W T | ||||
C1 | BBCtvwaves | ||||||||
C21 | C4waves | C4waves | C4waves | +D3+4 | D3+4 | ||||
C23 | SDN | SDN | |||||||
C24 | ITVwaves | ITVwaves | ITVwaves | BBCB | BBCB | ||||
C26 | ArqA | ArqA | |||||||
C27 | BBC2waves | BBC2waves | BBC2waves | BBCA | BBCA | ||||
C29 | ArqB | ||||||||
C30 | LBT | ||||||||
C31 | BBC1waves | BBC1waves | BBC1waves | ||||||
C33 | com7 | ||||||||
C34 | com8 | ||||||||
C36 | _local | ||||||||
C48 | NIMM | NIMM | |||||||
C55tv_off | com7tv_off | ||||||||
C56tv_off | COM8tv_off |
tv_off Being removed from Freeview (for 5G use) after November 2020 / June 2022 - more
Table shows multiplexes names see this article;
green background for transmission frequencies
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W T
waves denotes analogue; digital switchover was 10 Oct 12 and 24 Oct 12.
How do the old analogue and currrent digital signal levels compare?
Analogue 1-4 | 500kW | |
BBCA, D3+4, BBCB | (-7dB) 100kW | |
SDN, ARQA, ARQB | (-10dB) 50kW | |
com8 | (-16dB) 12.7kW | |
com7 | (-16.1dB) 12.4kW | |
LBT | (-20dB) 5kW | |
Mux 1*, Mux 2*, Mux A*, Mux B* | (-23.4dB) 2.3kW | |
Mux C* | (-24dB) 2kW | |
Mux D* | (-24.9dB) 1.6kW | |
NIMM | (-47dB) 10W |
Which companies have run the Channel 3 services in the Divis transmitter area
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Saturday, 31 October 2015
M
mike2:24 PM
just come across you: exploring for the moment. looks good. cheers
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Thursday, 5 November 2015
F
Frank2:50 PM
Need help move from bt9 to bt28 can't get free view can only get saorview lreland
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J
jb388:22 PM
Frank: If you were previously receiving Freeview? when residing at BT9, then the situation should not be that terribly different at BT28. Divis being located at 3 miles away from BT9 at an angle of approx 320 degrees, whereas at BT28 its now located at 7 miles away on a bearing of approx 33 degrees.
The strength of the signal being received from Divis will be significantly different between the two locations, and "if" you were using an indoor (same room) aerial at BT9, then this is unlikely to be good enough for reception at BT28.
Further advice dependant on feedback.
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Saturday, 26 December 2015
P
Paul7:43 PM
My Tv asked for a channel update a few days ago and I noticed that BBC4-HD disappeared from the list immediately after. Then I noticed MotorsTV was missing. I did a manual signal scan and discovered that CH33 (570MHz) is pretty much dead on this TV.
Oddly - the PVR box hooked up to the same connection (from same loft box output) is happily receiving those channels from its previous tuning config.
So either my TV has developed a blackspot for CH33 or the channel info is not being signalled correctly in whatever overheads the TV is using to find a signal - anybody else with some funnies on CH33 ?
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P
Paul8:18 PM
No it was just me - swapped ports on the loft box - no difference.
Swapped out factory made link cable from PVR to TV and hey presto all good - never seen a cable fail with such unique effect on one channel.
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Wednesday, 17 February 2016
D
David Wilkinson10:20 PM
What multiplex is Motors TV transmitted on?
Is there a website which explains how the streaming channels work?
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Thursday, 18 February 2016
Saturday, 7 January 2017
P
Peter1:58 PM
Dungannon
I am currently having problems with freeview. the channels i do get are pixelling and there are a great deal of channels i dont get at all. it was all ok until last night when the channels on my three tvs started to pixel or disappear. i have retuned as recommended but it makes no difference. are there problems with my local transmitter. My postcode is BT71 4SG
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Peter's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
S
StevensOnln13:38 PM
Peter: Retuning is never recommended when you have a signal problem as it deletes all of your correctly tuned channels before attempting to scan for new ones. There are no reported problems with Divis so it is most likely something at your end. Start at the back of the TV and check all cables and connections are in tight with nothing loose or damaged, then work your way back towards the aerial as far as you can safely access checking everything as you go. Once you have some channels back, you'll probably need to retune again to restore the channels deleted during your earlier retune.
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Tuesday, 20 June 2017
A
andy race8:56 PM
We're experiencing very poor signal tonight and a lot of breakup on all channels. Signal is normally excellent. Is it weather repeated.
Andy Race - West coast, Isle of Man
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